Polycyclic aromatic hydrocarbon compounds containing an S atom or S(═O)2 group in their basic structure

Abstract

Polycyclic aromatic hydrocarbon compounds having an S atom or S(═O)2 moiety incorporated in their basic polycyclic structure that can have a nitrogen-containing heterocycloaliphatic group and / or a substituted or unsubstituted phenoxy group and / or a polymeric moiety bonded to the polycyclic structure and to compositions such as, e.g., printing inks which comprise these polycyclic aromatic hydrocarbons as colorants.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Application No. 61 / 563,381, filed Nov. 23, 2011 and claims priority under 35 U.S.C. §119 of International Patent Application No. PCT / EP2011 / 070869, filed Nov. 23, 2011. The entire disclosures of these applications are expressly incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to novel polycyclic aromatic hydrocarbon compounds having an S atom or S(═O)2 moiety incorporated in their basic polycyclic structure that can have a nitrogen-containing heterocycloaliphatic group and / or a substituted or unsubstituted phenoxy group and / or a polymeric moiety bonded to the polycyclic structure and to compositions such as, e.g., printing inks which comprise these polycyclic aromatic hydrocarbons as colorants.[0004]2. Discussion of Background Information[0005]Counterfeiting and market diversi...

AI Technical Summary

Benefits of technology

The present invention provides polycyclic aromatic hydrocarbon compounds of formula (I) that have at least three repeating units comprising an optionally substituted phenyl ring. These compounds have various uses, such as in the production of optical devices and sensors. The compounds have specific structures and properties that make them suitable for use in various applications. The invention also provides methods for making these compounds and intermediates used in their production.

Problems solved by technology

In such case counterfeit or diverted products are easily introduced into the supply chain.

Further, secure documents such as currency, passports, or identity cards are increasingly counterfeit around the world.

This situation is a very critical issue for governments and society in general.

As reprographic technologies become more and more sophisticated, it becomes even more difficult to make a clear distinction between a fake document and the original.

However, a drawback of these compounds is their often unsatisfactorily low solubility or dispersibility in liquid media such as those which are useful in printing inks.

This low solubility / dispersibility limits the suitability of these compounds as colorants for liquid compositions in general.

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